<template>
  <div>
    <div style="padding: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search"
                v-model="username"></el-input>
      <el-input style="width: 200px" placeholder="请输入邮箱" suffix-icon="el-icon-message" class="ml-5"
                v-model="email"></el-input>
      <el-input style="width: 200px" placeholder="请输入地址" suffix-icon="el-icon-position" class="ml-5"
                v-model="address"></el-input>
      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd">新增<i class="el-icon-circle-plus-outline"></i></el-button>

      <el-popconfirm
          class="ml-5"
          confirm-button-text="确定"
          cancel-button-text="我再想想"
          icon="el-icon-info"
          icon-color="red"
          title="您确定删除吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除<i class="el-icon-remove-outline"></i></el-button>
      </el-popconfirm>

      <el-upload style="display: inline-block" :action="$baseUrl+'/user/import'" :show-file-list="false"
                 :accept="'xlsx'"
                 :on-success="handleExcelImportSucces">

        <el-button type="primary" class="ml-5">导入<i class="el-icon-bottom"></i></el-button>
      </el-upload>

      <el-button type="primary" @click="exp" class="ml-5">导出<i class="el-icon-top"></i></el-button>
    </div>

    <el-table
        :data="tableData" border stripe :header-cell-class-name="headerBg" @selection-change="handleSelectionChange">
      <!-- @selection-change="handleSelectionChange"获取勾选的数据-->

      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="id" width="80"></el-table-column>
      <el-table-column prop="username" label="用户名" width="140"></el-table-column>
      <el-table-column prop="role" label="角色">
        <template slot-scope="scope">
          <el-tag type="primary" v-if="scope.row.role === 'ROLE_SUPER'">超級管理员</el-tag>
          <el-tag type="warning" v-if="scope.row.role === 'ROLE_ADMIN'">管理員</el-tag>
          <el-tag type="success" v-if="scope.row.role === 'ROLE_USER'">普通用戶</el-tag>
        </template>
      </el-table-column>
      <el-table-column prop="nickname" label="昵称" width="120"></el-table-column>
      <el-table-column prop="email" label="邮箱"></el-table-column>
      <el-table-column prop="phone" label="电话"></el-table-column>
      <el-table-column prop="address" label="地址"></el-table-column>

      <el-table-column label="操作" width="300" align="center">
        <template slot-scope="scope">
          <el-button type="primary" @click="lookCourse(scope.row.courses)"
                     v-if="scope.row.role === 'ROLE_SUPER' || scope.row.role === 'ROLE_ADMIN'">查看教授课程<i
              class="el-icon-edit"></i>
          </el-button>
          <el-button type="warning" @click="lookStuCourse(scope.row.stuCourses)"
                     v-if="scope.row.role === 'ROLE_USER'">查看已选课程<i class="el-icon-document"></i>
          </el-button>
          <el-button type="success" @click="handleEdit(scope.row)">编辑<i class="el-icon-edit"></i></el-button>

          <el-popconfirm
              class="ml-5"
              confirm-button-text="确定"
              cancel-button-text="我再想想"
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>

    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
      >
      </el-pagination>
    </div>

    <el-dialog title="用户信息" :visible.sync="dialogFormVisible" width="30%">
      <el-form label-width="80px" size="small">
        <el-form-item label="用户名">
          <el-input v-model="form.username" autocomplete="off"></el-input>
        </el-form-item>

        <el-form-item labeL="角色">
          <el-select clearable v-model="form.role" placeholder="请选择角色" style="width: 100%">
            <el-option v-for="item in roles" :key="item.name" :label="item.name" :value=" item.flag "></el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="昵称">
          <el-input v-model="form.nickname" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="form.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="电话">
          <el-input v-model="form.phone" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="地址">
          <el-input v-model="form.address" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

    <el-dialog title="授课信息" :visible.sync="vis" width="30%">
      <el-table :data="courses">
        <el-table-column prop="name" label="课程名称"></el-table-column>
        <el-table-column prop="score" label="学分"></el-table-column>
      </el-table>
    </el-dialog>

    <el-dialog title="选课信息" :visible.sync="stuVis" width="30%">
      <el-table :data="stuCourses">
        <el-table-column prop="name" label="课程名称"></el-table-column>
        <el-table-column prop="score" label="学分"></el-table-column>
      </el-table>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      nickname: "",
      username: "",
      email: "",
      address: "",
      dialogFormVisible: false,
      multipleSelection: [],
      form: {},
      headerBg: "headerBg",
      roles: [],
      courses: [],
      stuCourses: [],
      vis: false,
      stuVis: false
    };
  },
  //   加载时触发
  created() {
    this.load();
  },
  methods: {
    load() {
      //加载2条数据
      this.request.get("/user/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          username: this.username,
          email: this.email,
          address: this.address,
        },
      })
          .then((res) => {
            console.log(res);
            this.tableData = res.data.records;
            this.total = res.data.total;
          });

      this.request.get("/role").then(res => {
        this.roles = res.data
      })
    },

    lookCourse(courses) {
      console.log('courses', courses)
      this.courses = courses
      this.vis = true
    },
    lookStuCourse(stuCourses) {
      console.log('stuCourses', stuCourses)
      this.stuCourses = stuCourses
      this.stuVis = true
    },

    save() {
      this.request.post("/user", this.form).then((res) => {
        if (res.code === '200') {
          this.$message.success("保存成功");
          this.dialogFormVisible = false;
          this.load();
        } else {
          this.$message.error("保存失败");
        }
      });
    },
    //新增
    handleAdd() {
      this.dialogFormVisible = true;
      this.form = {};
    },
    //编辑
    handleEdit(row) {
      console.log(row);
      this.form = row;
      this.dialogFormVisible = true;
    },
    del(id) {
      this.request.delete("/user/" + id).then((res) => {
        if (res.code === '200') {
          this.$message.success("删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    //处理表格多选
    handleSelectionChange(val) {
      // console.log(val)
      this.multipleSelection = val;
    },
    //重置
    reset() {
      this.username = "";
      this.email = "";
      this.address = "";
      this.load();
    },
    delBatch() {
      let ids = this.multipleSelection.map((v) => v.id); //[{},{},{}] => [1,2,3]
      console.log(ids);
      this.request.post("/user/del/batch/", ids).then((res) => {
        if (res.code === '200') {
          this.$message.success("批量删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    handleSizeChange(pageSize) {
      console.log(pageSize);
      this.pageSize = pageSize;
      this.load();
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum);
      this.pageNum = pageNum;
      this.load();
    },
    exp() {
      window.open(`${this.$baseUrl}/user/export`);
    },
    handleExcelImportSucces() {
      this.$message.success("导入成功");
      //刷新数据
      this.load();
    }
  },
};
</script>
<style scoped>
.headerBg {
  background-color: #eee !important;
}
</style>